Renaming Default Constraints

Bill Fellows has a script to standardize default constraint names:

This week I’m dealing with synchronizing tables between environments and it seems that regardless of what tool I’m using for schema compare, it still gets hung up on the differences in default names for constraints. Rather than fight that battle, I figured it’d greatly simplify my life to systematically rename all my constraints to non default names. The naming convention I went with is DF__schema name_table name_column name. I know that my schemas/tables/columns don’t have spaces or “weird” characters in them so this works for me. Use this as your own risk and if you are using pre-2012 the CONCAT call will need to be adjusted to classic string concatenation, a.k.a. +

Click through for the script and be sure to check out Robert’s comment.  You can also revise this script to “rename” (i.e., drop and re-create) foreign key or check constraints, though those might take a while depending upon how much data you’ve got.

Related Posts

Implicit Parent Reference On Foreign Keys

Deborah Melkin shows us an interesting way of creating foreign keys: No matter how long you work with something, you can always find something that you never knew before. I found one about foreign keys this week. I was reviewing SQL scripts for coworkers and I noticed that the foreign keys were written without referencing […]

Read More

Missing Foreign Keys—A Cultural Problem

Martin Catherall tells a spooky Halloween story: By large databases I’m roughly meaning databases with several hundred tables, and I usually see a lot of these tables with several hundred GB’s of data in them. When I generally ask about the reason for no foreign key, I’m told they add  overhead they give no benefit […]

Read More

Categories

July 2017
MTWTFSS
« Jun Aug »
 12
3456789
10111213141516
17181920212223
24252627282930
31